Dual lock for bicycles, motorcycles



FIG. 1 is a top plan view of a dual lock for bicycles, motorcycles showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof; and,

FIG. 6 is a rear elevational view thereof.

The broken lines in FIGS. 1 and 2 representing a steering column of a bicycle are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a dual lock for bicycles, motorcycles, as shown and described. 